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Heads up - Ganymede visible centre disk, 9.40pm 5th May

Stu

By Stu
in Observing - Planetary

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Stu

Stu

Posted
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Quick heads up, I was preparing for the arrival of the GRS, and having an early look at Jupiter through quite hazy conditions, and I spotted Ganymede very clearly on the disk. Its albedo is lower than Io or Europa, similar to Callisto I think, so it shows up looking very similar to a shadow transit. It is visible over the white of the Northern Temperate Zone (I think I'm right in that!!) Go have a look!

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ShrewView

ShrewView

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Certainly worth a view.

Set up a little while ago and using low power could only spot three of the quartet and wondered if the other was behind but higher mag revealed it crossing the disc. A good one for the imagers with the grs in a good position.

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Stu

Stu

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Cracking views now when the seeing steadies, which it is doing quite frequently. Hazy at times, but lovely when that clears. GRS is showing very nicely coming onto the disk, I have about another 25 mins before I need to head up the stairs to bedfordshire ?

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laudropb

laudropb

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Believe it or not the sky is clear here tonight and the seeing is not too bad. I left the frac up after my solar session and managed to catch the disc of Ganymede in transit. Thanks for the heads up Stu. Later when hopefully the sky is a little darker I will have a look for galaxies in Leo.

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Stu

Stu

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Just now, laudropb said:

Believe it or not the sky is clear here tonight and the seeing is not too bad. I left the frac up after my solar session and managed to catch the disc of Ganymede in transit. Thanks for the heads up Stu. Later when hopefully the sky is a little darker I will have a look for galaxies in Leo.

Excellent, very pleased you saw it John

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Paul73

Paul73

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Got it too. Nice little browny greyish disc with the GRS. Atmosphere pretty stable. 200x was nice and comfortable.

Lovely solar session in the warm during the day. Great Mars & Saturn first thing.

Picking up a new scope on Saturday.

Most satisfying!

Paul

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